Benign osteoblastoma involving maxilla: a case report and review of the literature

Benign osteoblastoma of the mandible: a case report

Osteoblastoma is a rare benign neoplasm formed by osteoid tissue and well-vascularized bone that occurs mainly in children and adolescents. It appears primarily in the long bones, vertebral column, and small bones of the hands and feet, and not typically in the skull and maxillary bones. The purpose of this study is to present the case of an 8-year-old girl with a diagnosis of right mandibular osteoblastoma and a review of the relevant literature. The goals of treatment were to preserve dental occlusion, masticatory function and facial symmetry while minimizing the effects on patient body image and quality of life. Osteoblastoma, although it is benign, can be aggressive, and its treatment will depend on the timing of diagnosis, size and location. Early diagnosis is essential to avoid not only radical surgery as in the case presented, but also to help minimize the risk of possible relapse and potential malignancy of a benign osteoblastoma.

Osteoblastoma and Osteoid Osteoma of the Mandible: Review of the Literature and Report of Two Cases

Osteoblastoma and osteoid osteoma are rare benign neoplasms of the jaws. We reviewed current literature surrounding the ongoing debate over similarities and differences of osteoblastoma and osteoid osteoma and present two cases. Both cases are well-demarcated mixed radiodensity mandibular lesions with histological features of osteoblastoma. They exhibit, however, distinctly unique and contrasting clinical and imaging characteristics suggesting that the first case is osteoblastoma and the second is osteoid osteoma. The first case of a 37-year-old male presents with a large, expansile lesion at posterior mandible, surrounded by a thick sclerotic band. Unusual features include significant buccal/lingual expansion, extensive new bone apposition, and soft tissue edema in the masseter muscle. This is in contrast to the second case of a much smaller lesion in a 17-year-old male with history of recent third molar extraction in the left posterior mandible. In this case, CT imaging revealed a circular, nonexpansile lesion with a sclerotic border surrounded by a radiolucent rim. Both patients underwent surgical excision of the lesion with extraction of the adjacent tooth. We discuss herein the distinct clinical and imaging features.

[Osteoblastoma of the parietal bone of the cranial vault: about a case]

L´ostéoblastome est une tumeur osseuse primitive peu fréquente, sa localisation au niveau de la voûte du crâne est extrêmement rare. Nous rapportons un cas d´ostéoblastome de l´os pariétal droit chez une femme âgée de 46 ans ayant des antécédents de traumatisme crânien bénin. Elle a présenté de façon progressive une tuméfaction pariétale droite douloureuse non inflammatoire. Le scanner crânio-cérébral a montré une lésion osseuse hyperdense respectant la table interne de l´os pariétal droit. La patiente a bénéficié d´abord d´une biopsie puis d´une résection totale de la lésion osseuse avec une cranioplastie au ciment méthyl-méthacrylique. Les suites post-opératoires étaient simples. L´examen anatomo-pathologique a montré qu´il s´agissait d´un ostéoblastome sans signes de malignité. Nous discuterons, à travers notre premier cas d´ostéoblastome de la voûte du crâne et une revue de la littérature, sa présentation clinique, l´examen anatomo-pathologique, les aspects radiologiques, ainsi que la prise en charge de cette rare pathologie.

Benign osteoblastoma of the palate: a rare clinical presentation

Osteoblastoma is a rare, benign type of osteoblastic tumor. It constitutes approximately 1% of all primary bone tumors. Osteoblastoma most commonly affects the long bones; it very rarely affects the jaw bones. Because of its clinical and histological similarity with other bony tumors, such as osteoid osteoma and fibro-osseous lesions, osteoblastoma is a diagnostic challenge. Very few cases of osteoblastoma involving the maxillofacial region have been reported to date. We herein describe a 15-year-old female patient with osteoblastoma that presented as a palatal swelling of 6 months' duration.

Cytological diagnosis of osteoblastoma of the talus: Case report with unusual presentation and diagnostic pitfalls

Osteoblastoma is a rare bone tumor mostly affecting the young adults and commonly involving the spinal cord and long bones. Talus is the uncommon site of presentation, and if involved, then the neck is more commonly involved than the body of talus. The cytological diagnosis of osteoblastoma is limited, and to the best of our knowledge, its fine-needle aspiration (FNA) in the talus has still not been reported in the literature. The present case of osteoblastoma is, therefore, being reported due to the unusual presentation in elderly male in the body of talus and showing extensive involvement on X-ray. The case was initially diagnosed on FNA cytology excluding the possibility of giant-cell tumor and osteosarcoma. The case also highlights the importance of vigilant observation of subtle cytological features of this rare tumor which may be helpful in avoiding diagnostic pitfalls, especially at an uncommon site and with unusual presentation. An early precise diagnosis by cytology may be followed by appropriate treatment and thus avoiding any further complications.

Agressive osteoblastoma in a seven-year-old girl's mandible: Treatment and six-year monitoring

INTRODUCTION

Osteoblastoma is a rare benign bone tumor with locally aggressive behavior in some cases; however, with rare malignant transformations. A case of osteoblastoma in a seven-year-old patient's mandible is presented.

PRESENTATION OF CASE

After the diagnosis, the patient underwent two stages of treatment. In the first intervention, an intralesional curettage was performed as well as a marsupialization of the lesion, in order to reduce its volume and allow a second and more conservative surgical period. In the second surgery, after reducing the lesion, enucleation and rigid internal fixation of the mandible were performed.

DISCUSSION

The treatment has proven to be satisfactory, without recurrence of the injury for two years, when the patient suffered a car accident that caused the synthetic material to fracture.

CONCLUSION

The internal fixation was surgically replaced and the patient is being monitored after six years of the initial intervention, without presenting further changes.

Radiolucent rim as a possible diagnostic aid for differentiating jaw lesions

In this study, we formulate a new proposal that complements previous classifications in order to assist dental practitioners in performing a differential diagnosis based on patients' radiographs. We used general search engines and specialized databases such as Google Scholar, PubMed, PubMed Central, MedLine Plus, Science Direct, Scopus, and well-recognized textbooks to find relevant studies by using keywords such as "jaw disease," "jaw lesions," "radiolucent rim," "radiolucent border," and "radiolucent halo." More than 200 articles were found, of which 70 were broadly relevant to the topic. We ultimately included 50 articles that were closely related to the topic of interest. When the relevant data were compiled, the following eight lesions were identified as having a radiolucent rim: periapical cemento-osseous dysplasia, focal cemento-osseous dysplasia, florid cemento-osseous dysplasia, cemento-ossifying fibroma, osteoid osteoma, osteoblastoma, odontoma, and cementoblastoma. We propose a novel subcategory, jaw lesions with a radiolucent rim, which includes eight entities. The implementation of this new category can help improve the diagnoses that dental practitioners make based on patients' radiographs.

Benign osteoblastoma of the mandible in a 12-year-old female: A case report

Benign osteoblastoma refers to a benign tumor of the bone. Osteoblastoma most commonly affects the vertebrae and long tubular bones, however, in rare cases is observed in the facial bones. The current study presents the case of a 12-year-old female patient with a tumor in the mandibular body. Radiological imaging revealed a lesion with regular contours. The lesion was radically resected and histological analysis of the specimen demonstrated features that are typical of a benign osteoblastoma. The consequential defects of the jaw were reconstructed using titanium implants and autologous bone transplantation. The patient remains disease free subsequent to a five-month follow-up period. The aim of the present report is to present a rare case of benign osteoblastoma of the mandible. This study demonstrated that correct diagnosis and complete surgical excision are important to reduce the risk of recurrence of a benign osteoblastoma.

Bone- and cartilage-forming tumors and ewing sarcoma: an update with a gnathic emphasis

Over the past decade, there have been remarkable advances in bone tumor pathology. Insights into the genetic basis and pathobiology of many tumor types have impacted diagnosis, classification, and treatment. However, because gnathic lesions may comprise only a small proportion of cases overall for many tumors, clinicopathologic features and management considerations specific to this subset may be overlooked. Here we provide a summary of recent developments in the following tumor types: osteosarcoma (OS), chondrosarcoma (CS), osteoid osteoma (OO), osteoblastoma (OB), and Ewing sarcoma (ES). In particular, we will give special consideration to cases arising in the jaws.

Benign osteoblastoma of maxilla: a case report emphasizing the histopathological differential diagnosis

Benign osteoblastoma is a rare bone tumour characterized histologically by production of woven bone spicules, which are bordered by prominent osteoblasts. It mainly affects male teenagers and young adults. A case of benign osteoblastoma of maxilla in a nineteen years old male is reported here. Also, histological comparison is made between benign osteoblastoma, aggressive osteoblastoma and osteosarcoma.

Aggressive Multilocular Osteoblastoma in the Mandible: A Rare and Difficult Case to Diagnose

Osteoblastoma is a benign neoplasia and is uncommon in the jaws. In some cases, this lesion presents extremely aggressive local characteristics and is termed aggressive osteoblastoma. Because the clinical, radiographic and histopathologic characteristics are similar to those of a variety of benign and malignant tumors, it poses a diagnostic dilemma. This report presents a case of an aggressive osteoblastoma in the mandible and discusses the differential diagnosis of this lesion. A 13-year-old white male sought the Stomatology Clinic at the State University of Paraíba, Campina Grande, PB, Brazil, complaining of asymptomatic swelling on the left side of his face. Cone-beam computerized tomography showed a multilocular, hypodense bone lesion, located in the body of the left mandible and lower third of the ascending ramus. The initial diagnostic hypothesis was juvenile ossifying fibroma or osteosarcoma. After histopathologic examination, the final diagnosis was aggressive osteoblastoma. Surgical resection with a safety margin was performed. There was no evidence of recurrence after a follow-up period of 4 years.

Cytological diagnosis of osteoblastoma of cervical spine: a case report with review of literature

Osteoblastomas are rare benign but sometimes aggressive primary bone tumors (1%), usually seen in males in the 2nd decade. Osteoblastomas, occurring in the spine, constitute a medical emergency due to impending cord compression. Hence a rapid and simple diagnostic modality, such as fine-needle aspiration (FNA) plays an important role in clinical decision making. Cytological diagnosis of osteoblastoma is rare. We report a case of a young female patient presenting with a swelling in the left cervical paravertebral region. The X-ray findings were non-diagnostic and the patient was sent for an FNA. Aspiration yielded moderately cellular hemorrhagic smears with plasmacytoid cells, spindle cells, and osteoclastic giant cells in a background of matrix material. A diagnosis favoring osteoblastoma was made. The CT scan findings were in agreement with the cytological diagnosis and the lesion was excised. Histopathological examination confirmed the same. We describe here, the clinical and cytological features of osteoblastoma with their differential diagnosis, along with review of the literature. FNA can be used as an important tool in the pre-operative diagnosis of osteoblastoma.